Temporal and spatial variability of surface-based inversions over Europe based on ERA-Interim reanalysis

2018
journal article
article
30
dc.abstract.enTropospheric temperature inversions seem to be an important feature of climate, as well as a significant factor affecting air quality and fog formation. The aim of this article is to investigate the temporal and spatial variability of surface-based inversions (SBIs) over Europe. It is based on data derived from the ERA-Interim reanalysis for the period 1981-2015. The study examines diurnal, seasonal and multiannual variability of temperature inversions based on their frequency, depth and strength. These three parameters are characterized by strong temporal variability - diurnal and seasonal, as well as strong spatial differentiation. It has been confirmed that the energy budget is the key factor responsible for diurnal, and partly seasonal variability of SBI occurrence. Its negative values lead to an intense cooling of active surface and initiate the formation of the radiative inversions, which are the most common type of inversion occurring over the mainland of Europe. Temperature inversions usually form shortly after dusk, increasing gradually their depth and strength until sunrise. At 0000 Universal Time Coordinated (UTC), SBI frequency attains higher values in the summer than in the winter over the predominant part of Europe. However, the inversion layers occurring then are noticeably shallower and weaker. Surface type strongly affects SBI properties. This is mostly marked in terms of the distinct differentiation between marine and land areas as well as the impact of vast glaciers located across Greenland and western part of Iceland. Moreover, the distribution of SBI depth and strength is shaped by atmospheric circulation. For instance, their higher values occur over Eastern Europe in the winter, which is associated with the influence of a seasonal high pressure system found over Russia. Taking into account multiannual variability, SBI parameters, primarily depth and strength, exhibit the most significant negative changes in the winter.pl
dc.affiliationWydział Geografii i Geologii : Instytut Geografii i Gospodarki Przestrzennejpl
dc.contributor.authorPalarz, Angelika - 176377 pl
dc.contributor.authorCeliński-Mysław, Daniel - 162795 pl
dc.contributor.authorUstrnul, Zbigniew - 160701 pl
dc.date.accessioned2018-01-04T13:44:55Z
dc.date.available2018-01-04T13:44:55Z
dc.date.issued2018pl
dc.description.additionalBibliogr. s. 167-168pl
dc.description.number1pl
dc.description.physical158-168pl
dc.description.volume38pl
dc.identifier.doi10.1002/joc.5167pl
dc.identifier.eissn1097-0088pl
dc.identifier.issn0899-8418pl
dc.identifier.projectK/DSC/003024pl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/48034
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.subject.ensurface-based inversionspl
dc.subject.enERA-Interim reanalysispl
dc.subject.envertical temperature profilepl
dc.subtypeArticlepl
dc.titleTemporal and spatial variability of surface-based inversions over Europe based on ERA-Interim reanalysispl
dc.title.journalInternational Journal of Climatologypl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Tropospheric temperature inversions seem to be an important feature of climate, as well as a significant factor affecting air quality and fog formation. The aim of this article is to investigate the temporal and spatial variability of surface-based inversions (SBIs) over Europe. It is based on data derived from the ERA-Interim reanalysis for the period 1981-2015. The study examines diurnal, seasonal and multiannual variability of temperature inversions based on their frequency, depth and strength. These three parameters are characterized by strong temporal variability - diurnal and seasonal, as well as strong spatial differentiation. It has been confirmed that the energy budget is the key factor responsible for diurnal, and partly seasonal variability of SBI occurrence. Its negative values lead to an intense cooling of active surface and initiate the formation of the radiative inversions, which are the most common type of inversion occurring over the mainland of Europe. Temperature inversions usually form shortly after dusk, increasing gradually their depth and strength until sunrise. At 0000 Universal Time Coordinated (UTC), SBI frequency attains higher values in the summer than in the winter over the predominant part of Europe. However, the inversion layers occurring then are noticeably shallower and weaker. Surface type strongly affects SBI properties. This is mostly marked in terms of the distinct differentiation between marine and land areas as well as the impact of vast glaciers located across Greenland and western part of Iceland. Moreover, the distribution of SBI depth and strength is shaped by atmospheric circulation. For instance, their higher values occur over Eastern Europe in the winter, which is associated with the influence of a seasonal high pressure system found over Russia. Taking into account multiannual variability, SBI parameters, primarily depth and strength, exhibit the most significant negative changes in the winter.
dc.affiliationpl
Wydział Geografii i Geologii : Instytut Geografii i Gospodarki Przestrzennej
dc.contributor.authorpl
Palarz, Angelika - 176377
dc.contributor.authorpl
Celiński-Mysław, Daniel - 162795
dc.contributor.authorpl
Ustrnul, Zbigniew - 160701
dc.date.accessioned
2018-01-04T13:44:55Z
dc.date.available
2018-01-04T13:44:55Z
dc.date.issuedpl
2018
dc.description.additionalpl
Bibliogr. s. 167-168
dc.description.numberpl
1
dc.description.physicalpl
158-168
dc.description.volumepl
38
dc.identifier.doipl
10.1002/joc.5167
dc.identifier.eissnpl
1097-0088
dc.identifier.issnpl
0899-8418
dc.identifier.projectpl
K/DSC/003024
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/48034
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.subject.enpl
surface-based inversions
dc.subject.enpl
ERA-Interim reanalysis
dc.subject.enpl
vertical temperature profile
dc.subtypepl
Article
dc.titlepl
Temporal and spatial variability of surface-based inversions over Europe based on ERA-Interim reanalysis
dc.title.journalpl
International Journal of Climatology
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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